错误添加自定义表视图

Question

细胞时，这是我的TableViewController应的单元添加到屏幕

import UIKit 

class categoryTableViewController: UITableViewController { 
var selectedItem = "" 
var selectedIndex: Int = 0 


var items = [[dataClass]]() 

//Double array of the shopping item Make new swift for data classes 
override func viewDidLoad() { 
    super.viewDidLoad() 
    items=[ 
     [dataClass(image: UIImage(named: "grocery-1-tomatoes")!, header: "Tomatoes", price:5, description:"lsdfjsdnfsjdf"), 
     dataClass(image: UIImage(named: "grocery-2-bananas")!, header: "bananas", price:5, description:"lsdfjsdnfsjdf"), 
     dataClass(image: UIImage(named: "grocery-3-gala")!, header: "gala", price:5, description:"lajsdljasd"), 
     dataClass(image: UIImage(named: "grocery-4-lettuce")!, header: "lettuce", price:5, description:"lajsdljasd"), 
     dataClass(image: UIImage(named: "grocery-5-broccoli")!, header: "broccoli", price:5, description:"lajsdljasd"), 
     dataClass(image: UIImage(named: "grocery-6-milk")!, header: "milk", price:5, description:"lajsdljasd"), 
     dataClass(image: UIImage(named: "grocery-7-bread")!, header: "bread", price:5, description:"lajsdljasd"), 
     dataClass(image: UIImage(named: "grocery-8-eggs")!, header: "eggs", price:5, description:"lajsdljasd") 
     ], 

     [dataClass(image: UIImage(named: "garden-1-shovel")!, header: "shovel", price:53, description:"lsdfjsdnfsjdf"), 
     dataClass(image: UIImage(named: "garden-2-tomato-plant")!, header: "Tomato Plant", price:5, description:"lsdfjsdnfsjdf"), 
     dataClass(image: UIImage(named: "garden-3-mower")!, header: "mower", price:5, description:"lsdfjsdnfsjdf") 
     ] 
    ] 
    tableView.dataSource = self 
    tableView.delegate = self 
    print(selectedItem) 
    print(selectedIndex) 

} 

override func didReceiveMemoryWarning() { 
    super.didReceiveMemoryWarning() 
    // Dispose of any resources that can be recreated. 
} 

// MARK: - Table view data source 

override func numberOfSections(in tableView: UITableView) -> Int { 
    return 1 
} 

override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { 
    // #warning Incomplete implementation, return the number of rows 

    return items[selectedIndex].count 
} 

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { 
    let cell = tableView.dequeueReusableCell(withIdentifier: "categoryView", for: indexPath) as! customTableViewCell 

    cell.categoryImageView = UIImageView(image: items[selectedIndex][indexPath.row].categoryImageView) 
//right here I get the error type dataClass has no subscript members 
    cell.categoryNameLabel = UILabel(header: items[selectedIndex][indexPath.row].categoryLabel) 
//right here I get the error value of type 'inout [[dataClass]]' (aka 'inout Array <array<dataClass>>') 
    cell.categoryDescriptionLabel = UILabel(description: items[selectedIndex][indexPath.row].categoryDescription) 
//right here I get the error value of type 'inout [[dataClass]]' (aka 'inout Array <array<dataClass>>') 

    return cell 

} 
} 

这是我customTableViewCell类 进口的UIKit

class customTableViewCell: UITableViewCell { 

@IBOutlet weak var categoryPriceLabel: UILabel! 
@IBOutlet weak var categoryImageView: UIImageView? 
@IBOutlet weak var categoryDescriptionLabel: UILabel! 
@IBOutlet weak var categoryNameLabel: UILabel! 

override func awakeFromNib() { 
    super.awakeFromNib() 
    // Initialization code 
} 

override func setSelected(_ selected: Bool, animated: Bool) { 
    super.setSelected(selected, animated: animated) 
    // Configure the view for the selected state 
} 

} 

，这是我的dataClass import UIKit

class dataClass{ 

var categoryImage: UIImage 
var categoryLabel: String 
var categoryPrice: Int 
var categoryDescription: String 
init(image: UIImage, header: String, price:Int, description:String){ 
    self.categoryImage = image 
    self.categoryLabel = header 
    self.categoryPrice = price 
    self.categoryDescription = description 
} 
} 

I我试图以编程方式在页面中添加不同的类别，但我不知道如何解决这些错误。

Answer 1

替换此

cell.categoryImageView = UIImageView(image: items[selectedIndex][indexPath.row].categoryImageView) 
//right here I get the error type dataClass has no subscript members 
cell.categoryNameLabel = UILabel(header: items[selectedIndex][indexPath.row].categoryLabel) 
//right here I get the error value of type 'inout [[dataClass]]' (aka 'inout Array <array<dataClass>>') 
cell.categoryDescriptionLabel = UILabel(description: items[selectedIndex][indexPath.row].categoryDescription) 
//right here I get the error value of type 'inout [[dataClass]]' (aka 'inout Array <array<dataClass>>') 

随着

cell.categoryImageView.image = items[selectedIndex][indexPath.row].categoryImage 

cell.categoryNameLabel.text = items[selectedIndex][indexPath.row].categoryLabel 

cell.categoryDescriptionLabel.text = items[selectedIndex][indexPath.row].categoryDescription 

Answer 2

为@Sahil提到您可以修复这些错误或：

解决您的customTableViewCell

　　　import UIKit 

    　class customTableViewCell: UITableViewCell { 

     @IBOutlet weak var categoryPriceLabel: UILabel! 
     @IBOutlet weak var categoryImageView: UIImageView? 
     @IBOutlet weak var categoryDescriptionLabel: UILabel! 
     @IBOutlet weak var categoryNameLabel: UILabel! 

     // -- declare new variable -- 
     var data: dataClass? { 
      didSet { 
       self.categoryImageView.image = data. categoryImage 
       self.categoryNameLabel.text = data.categoryLabel 
       self.categoryDescriptionLabel.text = data.categoryDescription 
      } 
     } 
     // ------------------- 

     override func awakeFromNib() { 
      super.awakeFromNib() 
      // Initialization code 
     } 

     override func setSelected(_ selected: Bool, animated: Bool) { 
      super.setSelected(selected, animated: animated) 
      // Configure the view for the selected state 
     } 
    } 

而更换：

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { 
    let cell = tableView.dequeueReusableCell(withIdentifier: "categoryView", for: indexPath) as! customTableViewCell 

    cell.categoryImageView = UIImageView(image: items[selectedIndex][indexPath.row].categoryImageView) 
//right here I get the error type dataClass has no subscript members 
    cell.categoryNameLabel = UILabel(header: items[selectedIndex][indexPath.row].categoryLabel) 
//right here I get the error value of type 'inout [[dataClass]]' (aka 'inout Array <array<dataClass>>') 
    cell.categoryDescriptionLabel = UILabel(description: items[selectedIndex][indexPath.row].categoryDescription) 
//right here I get the error value of type 'inout [[dataClass]]' (aka 'inout Array <array<dataClass>>') 

    return cell 

} 

有：

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { 
    let cell = tableView.dequeueReusableCell(withIdentifier: "categoryView", for: indexPath) as! customTableViewCell 

    cell.data = items[selectedIndex][indexPath.row] 

    return cell 

}